[[!getChildCount? &parent=`33` &depth=`0` &template=`3` &class_key=`msCategory`]] — Return the number children of a given resource = 33, with a given tree-depth = 1, wich a filter template=`3` and class_key=`msCategory`.

[[!getChildCount? &parent=`33` &depth=`0` &template=`3` &class_key=`msCategory` &toPlaceholder=`countres`]] — Save output to a placeholder with this name [[+countres]] instead of displaying the output to the screen.